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Tobu 10000 series
Tojo Line 10000 series 10-car set 11006, October 2021
Manufacturer	Alna Kōki, Fuji Heavy Industries, Tokyu Car Corporation
Replaced	7300 series, 3000 series
Constructed	1983–1995
Entered service	1983
Refurbished	2007–
Number built	486 vehicles
Formation	2/4/6/8/10 cars per trainset
Operators	Tobu Railway
Depots	Kasukabe, Nanakodai, Shinrinkōen, Shin-Tochigi
Lines served	TS Tobu Skytree Line TI Tobu Isesaki Line TN Tobu Nikko Line TD Tobu Urban Park Line TJ Tobu Tojo Line
Specifications
Car body construction	Stainless steel
Car length	20,000 mm (65 ft 7 in)
Width	2,850 mm (9 ft 4 in)
Doors	4 pairs per side
Maximum speed	110 km/h (68 mph)
Power output	140 kW (190 hp) × 4 per motor car
Acceleration	2.5 km/(h⋅s) (1.6 mph/s)
Deceleration	4.5 km/(h⋅s) (2.8 mph/s) (emergency brake)
Electric system(s)	1,500 V DC (overhead lines)
Current collector(s)	Pantograph
Track gauge	1,067 mm (3 ft 6 in)

The Tobu 10000 series (東武10000系, Tōbu 10000-kei) is a DC electric multiple unit (EMU) commuter train type operated in Japan by the private railway operator Tobu Railway since 1983.

First entering service in 1983 on the Tobu Tojo Line (1984 on the Tobu Isesaki Line), production continued through to 1995, with a total of 486 vehicles built.

Variants

The type was broadly divided into four sub-series, as follows.

• 10000 series
• 10030 series
• 10050 series (minor variant of 10030 series)
• 10080 series

10000 series

These were built to replace the remaining 7300 series trains on the Tojo Line, with the first trains entering service from 22 December 1983. 10000 series sets were also introduced on the Isesaki Line from 20 March 1984.

The corrugated stainless steel body design was based on the prototype 9000 series set built in 1981, while the front end design was derived from the earlier 8000 series EMUs. The seat covers were initially brown ("Colorado orange"), but later changed to the standard light green colour used on sets built from 1986.

Sets are configured as 2-, 6-, 8-, and 10-car sets. The four 10-car sets (11003 to 11006) used on the Tojo Line were formed in 1989 by adding two newly built intermediate cars to 8-car sets 11803 to 11806.

Two two-car sets (11201 and 11202) were transferred to the Tojo Line in May 2008 to augment the two remaining eight-car sets following the decision to run only ten-car formations on the Tojo Line from the start of the June 2008 timetable.

Total number of vehicles built: 118

Formations

10-car sets

The M1 and M4 cars are each fitted with two scissors type pantographs.

8-car sets

The M1 cars are each fitted with two scissors type pantographs.

6-car sets

The M1 and M3 cars were originally fitted with two scissors type pantographs, but these were replaced by two single-arm pantographs on the M1 cars and one single-arm pantograph on the M3 cars after refurbishment.

2-car sets

The Mc cars are fitted with two scissors type pantographs.

Refurbishment

From 2007, Isesaki Line 10000 series sets began receiving life extension refurbishment similar to that applied to the 9000 series EMUs. This involved new interiors with sculpted seats and dark blue moquette, and the addition of front-end skirts, single-arm pantographs, high-intensity headlights, and full-colour LED destination indicators.

• Interior of refurbished set in October 2021

10030 series

The 10030 subseries featured a new lightweight stainless steel body design, with a reduced number of bodyside corrugations and dull finish. A new bolsterless bogie was used. Internally, seat width was increased from 425 mm to 450 mm.

Two ten-car sets (11031 and 11032) were introduced in 1989 on the Tojo Line, the first time fixed ten-car sets had been used on Tobu overground trains.

Total number of vehicles built: 176

Formations

10-car sets

The M1 and M4 cars are each fitted with two scissors type pantographs.

Some former 4- and 6-car sets have been modified as permanently coupled 10-car sets for use on the Tojo Line.

The M1 and M3 cars are each fitted with two scissors type pantographs.

6-car sets

The M1 and M3 cars are each fitted with two scissors type pantographs.

4-car sets

The M1 cars are fitted with two scissors type pantographs.

Interior

• Interior view of a Tojo Line 11030 series set in February 2012
• Bench seating in a Tojo Line 11030 series set in February 2012
• Priority seating in a Tojo Line 11030 series set in February 2012

Refurbishment

Isesaki Line 10030 series sets began receiving life extension refurbishment from 2011, with the first set returned to service in March 2011. Refurbishment involves new interiors, and the addition of front-end skirts, high-intensity headlights, and full-colour LED destination indicators.

The first refurbished pair of Tojo Line 10030 series sets, 6-car set 11641 and 4-car set 11445, entered service on 1 February 2012. The refurbished Tojo Line 4- and 6-car sets are formed as permanently coupled 10-car sets with the equipment removed from the former inner driving cabs (former KuHa 11400 and KuHa 16600 cars becoming SaHa 11400 and SaHa 16600).

• Interior view of a refurbished Tojo Line 10030 series set in February 2012
• New sculpted bench seating in a refurbished Tojo Line 10030 series set in February 2012
• Priority seating in a refurbished Tojo Line 10030 series set in February 2012
• Wheelchair space in a refurbished Tojo Line 10030 series set in February 2012
• LCD passenger information display inside refurbished Tojo Line 10030 series set 11640 in February 2014

10050 series

This sub-series was built from 1992 to replace non-air-conditioned 3000 series trains. The design incorporated a number of further minor changes to the previous 10030 series design.

Total number of vehicles built: 188

Formations

6-car sets

The M1 and M3 cars are each fitted with two scissors type pantographs.

4-car sets

The M1 cars are fitted with two scissors type pantographs.

2-car sets

The Mc cars are fitted with two scissors type pantographs (single-arm type on set 11267).

10080 series

Identical in outward appearance to other 10030 series sets, one 4-car set (11480) was built in 1988 to test VVVF control equipment, which was subsequently used on the 100 series Spacia EMUs and later commuter EMU types. Car 11480 of this set was experimentally repainted at Kasukabe depot for evaluation with blue/white/light blue stripes to match the colour scheme applied to the 8000 series sets, but this colour scheme was ultimately not used.

Set 11480 was refurbished in 2015, returning to service on 15 August 2015.

Formation

The M1 cars are fitted with two scissors type pantographs.

References

1. ^ ２００６東武鉄道通勤車両カタログ [2006 Tobu Railway Commuter Rolling Stock Catalogue]. Tetsudō Daiya Jōhō Magazine. Vol. 35, no. 263. Japan: Kotsu Shimbun. March 2006. pp. 21–26.
2. ^ 私鉄車両年鑑 2012: 大手15社営業用車両完全網羅 私鉄車両年鑑2012 [Japan Private Railways Annual 2012]. Tokyo, Japan: Ikaros Publications Ltd. February 2012. p. 158. ISBN 978-4-86320-549-9.
3. ^ 私鉄車両編成表 私鉄車両編成表 2010 [Private Railway Rolling Stock Formations - 2010]. Japan: Kotsu Shimbunsha. August 2010. pp. 36–40. ISBN 978-4-330-15310-0.
4. ^ 私鉄車両編成表 2012 [Private Railway Rolling Stock Formations - 2012]. Japan: Kotsu Shimbunsha. July 2012. p. 48. ISBN 978-4-330-29911-2.
5. 東武10030系リニューアル車が営業運転を開始 [Tobu 10030 series refurbished set enter service]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 8 March 2011. Retrieved 8 March 2011.
6. 東武東上線で10030系リニューアル車が営業運転を開始 [Refurbished 10030 series sets enter service on Tobu Tojo Line]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 2 February 2012. Retrieved 2 February 2012.
7. 私鉄車両のうごき [Private Rail Rolling Stock Changes]. Tetsudō Daiya Jōhō Magazine. Vol. 41, no. 339. Japan: Kotsu Shimbun. 2012. p. 125.
8. 東武鉄道10080系11480編成がリニューアルされる [Tobu 10080 series set 11480 refurbished]. Japan Railfan Magazine Online (in Japanese). Japan: Koyusha Co., Ltd. 16 August 2015. Retrieved 16 August 2015.

External links

• Tobu 10000 series (in Japanese)

v t e Tobu Railway trainsets
Commuter	800/850 series 8000 series 9000 series 10000 series 20000 series 30000 series 50000 series 60000 series 70000 series 80000 series (future)
Express	100 series N100 series 200/250 series 500 series 634 series
Withdrawn types	300/350 series 1700/1720 series 1800 series 2000 series 3000 series 5000 series 5700 series 6000 series 6050 series 7300 series 7800 series KiHa 2000 series

• Electric multiple units of Japan
• Tobu Railway
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• Alna Koki rolling stock
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